Transfer functions of laminar premixed flames subjected to forcing by acoustic waves, AC electric fields, and non-thermal plasma discharges

Deanna Lacoste; Yuan Xiong; Jonas P. Moeck; Suk Ho Chung; William L. Roberts; Min Suk Cha

doi:10.1016/j.proci.2016.05.034

Transfer functions of laminar premixed flames subjected to forcing by acoustic waves, AC electric fields, and non-thermal plasma discharges

Deanna Lacoste, Yuan Xiong, Jonas P. Moeck, Suk Ho Chung, William L. Roberts, Min Suk Cha

Research output: Contribution to journal › Article › peer-review

49 Scopus citations

Abstract

The responses of laminar CH₄-air flames to forcing by acoustic waves AC electric fields and nanosecond repetitively pulsed glow discharges were investigated. Conical M-shaped and V-shaped flames were considered. For forcing by acoustic waves and plasma the geometry of the flame plays a major role in the response of the combustion while the flame shape did not affect the response of the combustion to electric field forcing. The flame response to acoustic forcing of about 10% of the incoming flow was similar to those previously obtained. The flames were responsive to an AC electric field across the whole range of frequencies. The gain of the transfer function obtained for plasma forcing was up to 5 times higher than for acoustic forcing. A forcing mechanism based on the generation of ionic wind is proposed along with a possible mechanism of plasma forcing.

Original language	English (US)
Pages (from-to)	4183-4192
Number of pages	10
Journal	Proceedings of the Combustion Institute
Volume	36
Issue number	3
DOIs	https://doi.org/10.1016/j.proci.2016.05.034
State	Published - 2017

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work is partly funded by the Agence Nationale de la Recherche and the German Research Foundation, through the DRACO project (ANR-13-IS09-0004), and by the Competitive Research Funding from King Abdullah University of Science and Technology (KAUST), Grant number 1975.

Keywords

Combustion dynamics
Nanosecond repetitively pulsed discharges
Plasma-assisted combustion
Thermoacoustic instabilities

ASJC Scopus subject areas

General Chemical Engineering
Mechanical Engineering
Physical and Theoretical Chemistry

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10.1016/j.proci.2016.05.034

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title = "Transfer functions of laminar premixed flames subjected to forcing by acoustic waves, AC electric fields, and non-thermal plasma discharges",

abstract = "The responses of laminar CH4-air flames to forcing by acoustic waves AC electric fields and nanosecond repetitively pulsed glow discharges were investigated. Conical M-shaped and V-shaped flames were considered. For forcing by acoustic waves and plasma the geometry of the flame plays a major role in the response of the combustion while the flame shape did not affect the response of the combustion to electric field forcing. The flame response to acoustic forcing of about 10% of the incoming flow was similar to those previously obtained. The flames were responsive to an AC electric field across the whole range of frequencies. The gain of the transfer function obtained for plasma forcing was up to 5 times higher than for acoustic forcing. A forcing mechanism based on the generation of ionic wind is proposed along with a possible mechanism of plasma forcing.",

keywords = "Combustion dynamics, Nanosecond repetitively pulsed discharges, Plasma-assisted combustion, Thermoacoustic instabilities",

author = "Deanna Lacoste and Yuan Xiong and Moeck, {Jonas P.} and Chung, {Suk Ho} and Roberts, {William L.} and Cha, {Min Suk}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work is partly funded by the Agence Nationale de la Recherche and the German Research Foundation, through the DRACO project (ANR-13-IS09-0004), and by the Competitive Research Funding from King Abdullah University of Science and Technology (KAUST), Grant number 1975.",

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doi = "10.1016/j.proci.2016.05.034",

language = "English (US)",

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pages = "4183--4192",

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AU - Lacoste, Deanna

AU - Xiong, Yuan

AU - Moeck, Jonas P.

AU - Chung, Suk Ho

AU - Roberts, William L.

AU - Cha, Min Suk

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work is partly funded by the Agence Nationale de la Recherche and the German Research Foundation, through the DRACO project (ANR-13-IS09-0004), and by the Competitive Research Funding from King Abdullah University of Science and Technology (KAUST), Grant number 1975.

PY - 2017

Y1 - 2017

N2 - The responses of laminar CH4-air flames to forcing by acoustic waves AC electric fields and nanosecond repetitively pulsed glow discharges were investigated. Conical M-shaped and V-shaped flames were considered. For forcing by acoustic waves and plasma the geometry of the flame plays a major role in the response of the combustion while the flame shape did not affect the response of the combustion to electric field forcing. The flame response to acoustic forcing of about 10% of the incoming flow was similar to those previously obtained. The flames were responsive to an AC electric field across the whole range of frequencies. The gain of the transfer function obtained for plasma forcing was up to 5 times higher than for acoustic forcing. A forcing mechanism based on the generation of ionic wind is proposed along with a possible mechanism of plasma forcing.

AB - The responses of laminar CH4-air flames to forcing by acoustic waves AC electric fields and nanosecond repetitively pulsed glow discharges were investigated. Conical M-shaped and V-shaped flames were considered. For forcing by acoustic waves and plasma the geometry of the flame plays a major role in the response of the combustion while the flame shape did not affect the response of the combustion to electric field forcing. The flame response to acoustic forcing of about 10% of the incoming flow was similar to those previously obtained. The flames were responsive to an AC electric field across the whole range of frequencies. The gain of the transfer function obtained for plasma forcing was up to 5 times higher than for acoustic forcing. A forcing mechanism based on the generation of ionic wind is proposed along with a possible mechanism of plasma forcing.

KW - Combustion dynamics

KW - Nanosecond repetitively pulsed discharges

KW - Plasma-assisted combustion

KW - Thermoacoustic instabilities

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Transfer functions of laminar premixed flames subjected to forcing by acoustic waves, AC electric fields, and non-thermal plasma discharges

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Bibliographical note

Keywords

ASJC Scopus subject areas

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